Top JET GROUTING Contractors

Schnabel distinguishes itself as one of the top jet grouting contractors in the United States, known for its superior soil stabilization techniques. This expertise is invaluable for clients facing unique challenges in their construction projects, ensuring the enhancement of soil conditions to meet specific project requirements.

Jet grouting, a core service offered by Schnabel, is highly effective in managing groundwater issues in subterranean construction. It is also a trusted method for fortifying the foundations of existing structures and providing essential support during excavation phases.

Regarded as a leader among top jet grouting contractors, Schnabel excels in converting unstable soil into durable, cement-stabilized formations, crucial for effective groundwater management and foundational support.

With its extensive experience and proven track record, Schnabel is well-equipped to assist clients in navigating complex construction challenges, helping them to achieve their project objectives with precision and reliability.


In the field of soil improvement, jet grouting plays a pivotal role. This method involves the in-situ blending of soil with injected cement grout to create cement-stabilized soil columns. These columns enhance the soil’s strength and reduce its permeability, serving as an engineered solution for foundation support and groundwater control. Key applications include underpinning existing structures and creating cutoff walls for excavation support.

This process involves drilling a small-diameter pipe (typically about 4 inches) to the target depth. Then, contractors inject cement grout at high pressures (around 6,000 psi) through the drill pipe. As the pipe rotates and is withdrawn, it forms a circular column of improved soil. The diameter of these columns can be controlled by altering the rate of withdrawal, allowing for adaptable support structures. These columns can provide vertical support individually or be combined to form barriers against the movement of soil and water.

The adaptability of jet grouting is particularly beneficial in areas with subsurface utilities or other obstructions. Its minimal drilling technique allows for effective intervention in tight spaces, enabling the creation of larger diameter soil columns beneath these obstructions. This makes jet grouting an effective and versatile method for soil stabilization in complex underground environments. As one of the top jet grouting contractors, Schnabel utilizes this technique to provide customized solutions for diverse and challenging construction projects.


Children’s Hospital in Minneapolis

Schnabel used jet grout columns as underpinning and excavation support for the construction of an addition to the Children’s Hospital in Minneapolis, Minnesota. The jet grout columns eliminated the need for timber lagging and prevented the loss of sand during the 21-foot-deep excavation.

J Avenue Water Treatment Plant

Schnabel installed 67 jet grout columns to support the expansion of the J Avenue water treatment plant in Cedar Rapids, Iowa. This project required an excavation adjacent to an existing structure. The continuous wall of jet grout columns was successful in retaining the soil and water behind the wall and no measurable settlement of the tank structure occurred.

The Minneapolis Children’s Hospital project was Schnabel’s first application of jet grouting to underpin an existing structure in lieu of traditional hand-dug underpinning pits. The project team was very pleased with the performance of the jet grout underpinning system.

Chuck Conlon, P.E., Children's Hospital of Minneapolis


Schnabel is the sector’s most operationally efficient Geostructural Design & Construction contractor. We optimize efficiencies by leveraging decades of experience and design/build expertise to innovate processes and approaches that are consistently proven to deliver optimal outcomes for our clients.